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Cyberworlds (CW), 2010 International Conference on

Date 20-22 Oct. 2010

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Displaying Results 1 - 25 of 76
  • [Front cover]

    Publication Year: 2010, Page(s): C1
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  • [Title page i]

    Publication Year: 2010, Page(s): i
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  • [Title page iii]

    Publication Year: 2010, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2010, Page(s): iv
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  • Table of contents

    Publication Year: 2010, Page(s):v - ix
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  • Preface

    Publication Year: 2010, Page(s): x
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  • Organizing Committee

    Publication Year: 2010, Page(s): xi
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  • Program Committee

    Publication Year: 2010, Page(s):xii - xiii
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  • Steering Committee

    Publication Year: 2010, Page(s): xiv
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  • A Comprehensive Methodology to Visualize Articulations for the Physiological Human

    Publication Year: 2010, Page(s):1 - 8
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1277 KB) | HTML iconHTML

    Musculoskeletal disorders (MSDs) account for the largest fraction of temporary and permanent disabilities. Osteoarthritis (OA) is one of the most common MSDs which is characterized by a degeneration of articular cartilages. Understanding and preventing OA are of paramount importance in our aging yet very active society, and in this context, computer-assisted models of articulations are highly dema... View full abstract»

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  • Modeling Cyberworlds for Cloud Computing

    Publication Year: 2010, Page(s):9 - 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB) | HTML iconHTML

    Emergence of cloud computing combined with its high availability through smart devices such as smart phones and media is requiring a transparent and highly universal modeling of the worlds in cloud computing to overcome combinatorial explosion of computing, that are actually cyber worlds. Hence, appropriate scalable modeling of cyber worlds meets the requirements effectively. Extreme diversities, ... View full abstract»

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  • AFreeCA: Extending the Spatial Model of Interaction

    Publication Year: 2010, Page(s):17 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1927 KB) | HTML iconHTML

    This paper analyses the Spatial Model of Interaction, a model that rules the possible interactions among two objects and that has been widely accepted and used in many CVE systems. As a result of this analysis, some deficiencies are revealed and a new model of interaction is proposed. Additionally, a prototype illustrating some of the best features of this model of interaction is detailed. View full abstract»

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  • Haptic Rendering Algorithm for Biomolecular Docking with Torque Force

    Publication Year: 2010, Page(s):25 - 31
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (943 KB) | HTML iconHTML

    Haptic devices enable the user to manipulate the molecules and feel interactions during the docking process in virtual environment on the computer. Implementation of torque feedback allows the user to have more realistic experience during force simulation and find the optimum docking positions faster. In this paper, we propose a haptic rendering algorithm for biomolecular docking with torque force... View full abstract»

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  • User Model for Predictive Calibration Control on Interactive Screens

    Publication Year: 2010, Page(s):32 - 37
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (829 KB) | HTML iconHTML

    On interactive surfaces, a precise calibration of the tracking system is necessary for an exact user interaction. So far, common calibration techniques focus on eliminating geometric distortions. This static calibration is only correct for a specific viewpoint of one single user and parallax error distortions still occur if this changes (i.e. if the user moves in front of the digital screen). In o... View full abstract»

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  • Haptic Rendering of Mixed Haptic Effects

    Publication Year: 2010, Page(s):38 - 45
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB) | HTML iconHTML

    Commonly, surface and solid haptic effects are separated for haptic rendering. We propose a method for defining surface and solid haptic effects as well as various force fields in 3D cyber worlds containing mixed geometric models, including polygon meshes, point clouds, image-based billboards and layered textures, voxel models and functions-based models of surfaces and solids. We also propose a wa... View full abstract»

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  • Building Hand Motion-Based Character Animation: The Case of Puppetry

    Publication Year: 2010, Page(s):46 - 52
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1344 KB) | HTML iconHTML

    Automatic motion generation for digital character under the real-time user control is a challenging problem for computer graphic research and virtual environment applications such as on-line games. The present study introduces a methodology to generate a glove puppet animation which is controlled by a new input device, called the Smart Glove, capturing the hand motion. An animation system is propo... View full abstract»

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  • Virtual Shelf: Sharing Music Between People and Devices

    Publication Year: 2010, Page(s):53 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9065 KB) | HTML iconHTML

    Digital media are more and more present in our lives, but we are still waiting for interfaces and devices completely adapted to this content. In this paper, we present the virtual shelf, an application dedicated to interact with our digital music collection. Our concept is to visualize our music collection in a familiar environment, a classic CD shelf, and to interact with it in a natural way, usi... View full abstract»

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  • Mesh-to-Mesh Collision Detection by Ray Tracing for Medical Simulation with Deformable Bodies

    Publication Year: 2010, Page(s):60 - 66
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (649 KB) | HTML iconHTML

    We propose a robust mesh-to-mesh collision detection algorithm using a ray tracing method. The algorithm checks all vertices of a geometrical object based on the proposed criteria, and then the colliding vertices are detected. In order to realize a real-time calculation, acceleration by spatial subdivision is performed. Since the proposed ray-traced collision detection method can directly calculat... View full abstract»

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  • Measuring Multimodal Synchrony for Human-Computer Interaction

    Publication Year: 2010, Page(s):67 - 71
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB) | HTML iconHTML

    Nonverbal synchrony is an important and natural element in human-human interaction. It can also play various roles in human-computer interaction. In particular this is the case in the interaction between humans and the virtual humans that inhabit our cyber worlds. Virtual humans need to adapt their behavior to the behavior of their human interaction partners in order to maintain a natural and cont... View full abstract»

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  • Speech-Based Emotion Characterization Using Postures and Gestures in CVEs

    Publication Year: 2010, Page(s):72 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (671 KB) | HTML iconHTML

    Collaborative Virtual Environments (CVEs) have become increasingly popular in the past two decades. MostCVEs use avatar systems to represent each user logged into aCVE session. Some avatar systems are capable of expressing emotions with postures, gestures, and facial expressions. Inprevious studies, various approaches have been explored to convey emotional states to the computer, including voice a... View full abstract»

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  • Improvement of Speech Source Localization in Noisy Environment Using Overcomplete Rational-Dilation Wavelet Transforms

    Publication Year: 2010, Page(s):77 - 81
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (802 KB) | HTML iconHTML

    The generalized cross-correlation using the phase transform prefilter remains popular for the estimation of time-differences-of-arrival. However it is not robust to noise and as a consequence, the performance of direction-of-arrival algorithms is often degraded under low signal-to-noise condition. We propose to address this problem through the use of a wavelet-based speech enhancement technique si... View full abstract»

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  • Source Localization in the Presence of Dispersion for Next Generation Touch Interface

    Publication Year: 2010, Page(s):82 - 86
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (394 KB) | HTML iconHTML

    We propose a new paradigm of touch interface that allows one to convert daily objects to a touch pad through the use of surface mounted sensors. To achieve a successful touch interface, localization of the finger tap is important. We present an inter-disciplinary approach to improve source localization on solids by means of a mathematical model. It utilizes mechanical vibration theories to simulat... View full abstract»

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  • Development of a Facial Emotion Recognition Method Based on Combining AAM with DBN

    Publication Year: 2010, Page(s):87 - 91
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (702 KB) | HTML iconHTML

    In this paper, novel methods for facial emotion recognition in facial image sequences are presented. Our facial emotional feature detection and extracting based on Active Appearance Models (AAM) with Ekman's Facial Action Coding System (FACS). Our approach to facial emotion recognition lies in the dynamic and probabilistic framework based on Dynamic Bayesian Network (DBN) with Kalman Filter for mo... View full abstract»

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  • Towards Tangible Images and Video in Cyberworlds--Function-Based Approach

    Publication Year: 2010, Page(s):92 - 96
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (901 KB) | HTML iconHTML

    Haptic interaction is commonly used with 3D objects defined by their geometric and solid models. Extension of the haptic interaction to 3D Cyber worlds is a challenging task due to the Internet bandwidth constraints and often prohibitive sizes of the models. We study how to replace visual and haptic rendering of shared 3D objects with 2D image visualization and 3D haptic rendering of the forces re... View full abstract»

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  • Automatic Reconstruction and Web Visualization of Complex PDE Shapes

    Publication Year: 2010, Page(s):97 - 104
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1671 KB) | HTML iconHTML

    Various Partial Differential Equations (PDE) have been used in computer graphics for approximating surfaces of geometric shapes by finding solutions to PDEs subject to suitable boundary conditions. The PDE boundary conditions are defined as 3D curves on the surface of the shapes. We propose how to automatically derive these curves as boundaries of curved patches on the surface of the original poly... View full abstract»

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